CVE-2026-65913
Published:July 23, 2026
Updated:July 24, 2026
DOMPurify before 3.3.2 contains a prototype pollution vulnerability in USE_PROFILES mode that allows attackers to bypass attribute filtering by polluting Array.prototype properties. Attackers can set Array.prototype properties like onclick to true, causing DOMPurify to accept event handlers as allowlisted attributes and resulting in DOM-based XSS when sanitized markup is rendered.
Affected Packages
dompurify (CDN_JS):
Affected version(s) >=0.7.0 <3.3.2Fix Suggestion:
Update to version 3.3.2https://github.com/cure53/DOMPurify.git (GITHUB):
Affected version(s) >=v0.3 <3.3.2Fix Suggestion:
Update to version 3.3.2dompurify (NPM):
Affected version(s) >=0.4.0 <3.3.2Fix Suggestion:
Update to version 3.3.2dompurify (NPM):
Affected version(s) >=0.4.0 <3.3.2Fix Suggestion:
Update to version 3.3.2Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
EPSS
Base Score:
0.18